"No input file specified"

[openita]

Good morning.
In the new version 4.1 Elxis when I try to save the settings, pops up the message "No input file specified", and it happens even when I do the logout. I turned the site to offline by editing the configuration file manually. During installation I enabled the friendly research URLs and htaccess has been automatically renamed. Do you know the solution?
Thanks 

[datahell]

I guess all post requests to inner.php don't work. The most common reasons for this problem are:
1. Apache redirects makes form not working (especially if you have a  plesk control panel check domain options in plesk).
2. Wrong permissions or owner to inner.php file.

Check these andif the problem persists for more help show us a link to your site.

[openita]

Thank you for your help.
I checked everything but seems like there is no apache redirection, also I do not understand what should I change in the file inner.php
I purchased an Aurba domain in Italy with linux hosting, anti-virus, anti-spam, backup and mysqul but without redirection.
I read about another user that I think had the same problem that I have and solved it. Here is the forum's link: (metti il link XD). I wouldn't want to make mistakes because since I have to install the ios Reservation I won't be able to re-use the license once activated. I'll be waiting for your confirmation about the procedure to follow.

[datahell]

I can't propose you something without seeing it.

[openita]

I'm sorry I forgot to post the link:

https://forum.elxis.org/index.php?topic=7624.msg49204#msg49204

thank you very much 

[datahell]

Some PHP CGI/FastCGI installations don't set the PATH_INFO which is required in order SEO URLs to work.
You should contact your hosting provider for this.
Amigamerlin on the post you show me fixed pathinfo by clicking on the last option in his control panel.

[openita]

Thank you very much